Seiko Cal. 6636 - 154

The Seiko 6636-154 represents an important milestone in Seiko's 1973 lineup. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-099a6f65af27]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1973

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